In an effort to elucidate the mechanisms of action behind trichloroacetic acid (TCA) and alpha-hydroxy acid (AHA) peeling agents, independent researchers worked with investigators from PCA Skin and Colgate-Palmolive to perform a series of in vivo and in vitro experiments on a commercial TCA-lactic acid peel.
The investigators used a PCA Skin TCA-lactic acid commercial peel and obtained a human skin biopsy from abdominal plastic surgery. They performed:
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